1261423034 has 16 divisors (see below), whose sum is σ = 2060402400. Its totient is φ = 576911664.

The previous prime is 1261423021. The next prime is 1261423043. The reversal of 1261423034 is 4303241621.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1261422994 and 1261423012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571232 + ... + 573435.

It is an arithmetic number, because the mean of its divisors is an integer number (128775150).

Almost surely, 2^1261423034 is an apocalyptic number.

1261423034 is a deficient number, since it is larger than the sum of its proper divisors (798979366).

1261423034 is a wasteful number, since it uses less digits than its factorization.

1261423034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144717.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1261423034 is about 35516.5177628663. The cubic root of 1261423034 is about 1080.4887574016.

Adding to 1261423034 its reverse (4303241621), we get a palindrome (5564664655).

The spelling of 1261423034 in words is "one billion, two hundred sixty-one million, four hundred twenty-three thousand, thirty-four".